WILLIAM ANTHONY HARRISON (MD) – Internal Medicine Physician, NPI 1295718013
Internal Medicine Physician
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
169 INTERNAL MEDICINE in WY
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Provider Addresses for WILLIAM ANTHONY HARRISON (MD)
800, East 20th Street, Cheyenne, Laramie County, Wyoming, 82001, United States
SUITE 350
CHEYENNE, WY 820013859
Phone: (307) 996-1560
Fax: (307) 996-1565
Type: Location
PO BOX 20970
CHEYENNE, WY 820037020
Phone: (307) 996-1560
Fax: (307) 996-1565
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $14.
Total Amount is formed as General ($14) + Research ($0) + Ownership ($0) = $14.
Last reported payment date: 2024-03-21 • Largest payer in this snapshot: ABBVIE INC. ($14).
Total Amount
$14
General + Research + Ownership
Payments
1
Total payment records
General Amount
$14
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-21
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $14 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2008-01-31
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20080131000162 | I | Internal Medicine | WY | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 802 | 480 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 536 | 346 | $0 |
| 96372 | Injection of drug or substance under skin or into muscle | 163 | 71 | $0 |
| 93793 | Anticoagulant management of patient taking warfarin | 152 | 36 | $0 |
| J3420 | Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | 104 | 33 | $0 |
Insurance plans in this area (ZIP 82001)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Cardiovascular Disease (Cardiology) | MA | |
| N E P H R O L O G Y | KY | |
| Interventional Cardiology, Internal Medicine, Cardiovascular Disease (Cardiology) | IL | |
| - | WY | |
| Internal Medicine, Internal Medicine, Hospitalist | CO | |
| Physician Assistant | WY | |
| N E U R O L O G Y | WY | |
| Family Practice | WY | |
| Physical Therapist In Private Practice | WY | |
| Physical Therapist In Private Practice | WY |
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